Well first add 5 to both sides
4x-3=9
then add 3 to both sides
4x=12
then divide 4 by both sides.
x=3
The best way to find x is knowing the different angles and their properties and theorems.
<em><u>Solution:</u></em>
Given that,
<em><u>Use the following log rules</u></em>
Rule 1:
Rule 2:
Rule 3:
Break 162 down to primes:
Thus we get,
Next
Break 324 down to primes:
Next
By rule 2
Next
By rule 2
Thus the given are evaluated in terms of x and y
Answer:
6.55 cm
Step-by-step explanation:
A triangle is a polygon with three sides and three angles. Types of triangles are isosceles, acute, scalene, obtuse, right and equilateral triangle.
Cosine rule is used to show the relationship between sides and angles of a triangle. If a, b, and c are sides of a triangle, while A, B, and C are angles opposite to the corresponding sides. Then:
c² = a² + b² - 2ab*cos(C)
Given that PR = 13 cm, PQ = 12 cm and angle QPR = 30°, hence:
QR² = PR² + PQ² - 2(PR)(PQ)cos(∠QPR)
QR² = 13² + 12² - 2(13)(12)cos(30) = 169 + 144 - 270
QR² = 43
QR = 6.55 cm